Alamar wrote on Apr 30, 2012, 12:30:But since you can't swap to another arbitrary overflow zone, and the person you're grouped with, also gets thrown into a random one, you either have to get extremely lucky, or wait the hour (sometimes shorter, usually much longer, at least during peak) to be able to get into the same zone.

They said this one is a bug, and one that they hopefully fix soon. It's not a very social game if you can't group with people and actually see them.